Aerial tktjce



B. C. & R. N. RIBLET.

AERIAL TRUCK.

APPucATmN FILED Nov. s. 1915.

1,195,732. PanmdAug. 22,1910.

S ANT Fiblllfllilt BYRON C. RIBLET AND ROYAL N. RIBLET, OE" SPOKANE, WASHINGTON.

AERIAL TRUCK.

To all whom t may concern Be it known that we, BYRON C. RIBLET and ROYAL N. Riemer, citizens of the United States, and residents of Spokane, in the countyof Spokane and State of lashington, have invented certain new and useful Improvements in Aerial Trucks, of which the following is a specification.

This invention relates to aerial trucks and has for its primary objectto provide an improved construction, combination and arrangement of parts in an aerial truck which will render it economical in construction, durable in service, and efficient in operation. Toward the attainment of this purpose, we employ a truck comprising laterally spaced trusses or side plates which are preferably integrally connected by a transverse member which constitutes the bearing for parts of the suspension tackle such as the bearing pin of a yoke or the like from which articles to be conveyed are suspended.

One of the objects of the present invention is to journal the running shafts which carry the sheaves of the truck in removable bearings, each of said bearings havingan improved construction adapting it to interlock with suitable seats in the side frames of the trucks and to be held in position by said sheaves and shaft and indirectly by the load suspended therefrom.

Other objects will appear in the specication and be pointed out in detail in the appended claims, reference being had to the accompanying drawings which show the preferred embodiment of our invention.

ln the drawings: Figure 1 is a side elevation of one embodiment of our invention; Fig. 2 is a top plan view of the same with one of the sheaves removed; Fig. 3 is a vertical section through one of the bearings,

parts being broken away and parts shown in elevation; Fig. et is a side elevation of one of the bearings removed.

Referring more particularly to the drawings, in the preferred embodiment shown therein, the truck includes the side frames 1 and 2 which are preferably in the form of trusses or plates as shown in Fig. 1, having portions thereof depending intermediately of their ends. Said side frames are rigidly united by a transverse member 3 which in effect constitutes the bearing from which tackle may be suspended for carrying the articles to be conveyed. As a detail of construction, the bearing proper l Specification of Letters Patent.

)Patented Auw. 22, 1916.,

Serial No. 60,141.

extends through the tubular connecting member 3, being adapted to receive the pin or bolt (not shown on the drawings) of the yoke or similar member from which the suspension tackle is suspended. Extending upwardly from the bearing member 8 and preferably forming an integral part thereof, is a web 5 which is provided interiorly with a hollow chamber. 6 for the reception of lubricant which drains into the interior of bearing 4. Each of the side frames 1 and 2 is provided with downwardly opening notches or pockets at either end for the reception of the removable bearings, one of said bearings being shown best in Figs. 3 and fl. Thus each of said pockets is provided with a relatively broad wall or liange 7, of substantially inverted U-shape, which is adapted to receive a removable bearing l box comprising an upper semi-cylindrical wall 8, a flat bottom wall 9, flat side walls 10, and flat inner and outer walls 11 and 12. The inner wall 11 is provided with a circular opening 13 of substantially the same diameter 'as the shaft 14 which carries one of the sheaves 15. Said circular opening is in register with the inner cylindrical wall of the top wall 8 and therefore provides an extended bearing therefor for carrying the weight of the truck and the load suspended therefrom. A, small opening 16 in the outer wall of the bearing box permits the introduction of lubricant thereinto without dismantling the truck, said lubricant being contained in the lower box-like portion of the bearing. Mounted on the bottom of the lubricant chamber is a piece of sheet metal or other suitable material 17 upon which is mounted spring 18 which resiliently 'supports a pad 19 which is preferably constructed of felt of about one-half inch thickness, for ei:- ample. Said pad as well as the metal piece 17 is perforated with two holes through which passes a wick 20 which serves to convey oil or other lubricant to the pad 19 from which it is drawn by the rotating shaft 14;.

1Vhat we claim is :h

l. In an aerial truck, oppositely arranged side frames provided with openings therein, coaXially arranged bearings mounted in said openings, and a sheave-carrying shaft mounted in said bearings and holding them in place in said side frames.

2. In an aerial truck, oppositely arranged side frames provided with openings therein, coaxially ar 1anged bearings mounted in said openings, and a sheaves-carrying shaft mounted in said bearings and holding them in place in said side frames, said bearings being axially movable inwardly from said frames when the shaft is not in position and provided with iianges to prevent outward Idisplacement thereof.

3. In an aerial truck, oppositely arranged side frames with downwardly present-ed notches, bearings movable into and out of position within said notches, a sheave, and a shaft for said sheave, said shaft being journaled in said bearings and holding them in position within said notches.

elf. In an aerial truck, oppositely arranged side frames with downwardly presented notches, bearings movable into and out of position within said notches, a sheave, a shaft for said sheave, said shaft being journaled in said bearings and holding them in position within said notches, and means for closing the openings into said notches.

5. In an aerial truck, oppositely arranged side frames provided with a transverse connecting member intermediately of their ends, said connectingmember having a suspension bearing extending therethrough, shafts journaled in the outer ends of said side frames, and sheaves mounted on said shafts for supporting said truck on a track.

(3. In an aerial truck, oppositely arranged side frames provided. with a transverse connecting member intermediately of their ends, said connecting member having a sus# pension bearing extending therethrough, shafts journaled in the outer ends of said side frames, and sheaves mounted on said shafts for supporting said truck on a track, the ends of said side frames being provided with removable bearings adapted to be retained in interlocking engagement with said side frames by said shafts.

7. ln an aerial truck, oppositely arranged side frames provided with a transverse connecting member intermediately of their ends, said connecting member having a suspension bearing extending therethrough, shafts journaled in the outer ends of said side frames, and sheaves mounted on said shafts for supporting said truck on a track, the ends of said side frames being provided with downwardly opening notches, bearings movable into and out of position in said notches, said bearings being provided with portions interengaging with said side frames to prevent lateral displacement outwardly, shafts having the ends journaled in bearings, and sheaves mounted on said shafts and having portions abutting said bearings to prevent inward lateral displacement of said bearings. l

S. In an aerial truck, oppositely arranged side frames provided with a transverse connecting member intermediately of their ends, said connecting member having a suspension bearing extending therethrough, shafts journaled in the outer ends of said side frames, and sheaves mounted on said shafts for supporting said truck on a track, the ends of sai-d side frames being provided with downwardly opening notches, bearings movable into and out of position in said notches, said bearings being provided with portions interengaging with said side frames to prevent lateral displacement outwardly, shafts having the ends journaled in bearings, and sheaves mounted on said shafts and having portions abutting said bearings to prevent inward lateral displacement of said bea-rings, said side frames being provided with releasable means for blocking the removal of said bearings downwardly.

9. VIn an aerial truck, the combination with spaced lateral frames rigidly united, said frames having openings in their outer ends, bearings movable into and out of said openings, said bearings being provided with flanges adapted to engage said side frames, shafts journaled in saidA bearings, and sheaves mounted on said shafts and retaining said flanges against said side frames.

10. ln an aerial truck, the combination with spaced lateral frames rigidly united, said frames having openings in their outer ends, bearings movable into and out of said openings, said bearings being provided with flanges adapted to engage said side frames, shafts journaled in said bearings, and sheaves mounted on said shafts and retaining said flanges against said side frames, each of said bearings being provided with a lubricating chamber below the shaft end iournaled therein, and yieldably supported lubricating means mounted in said chamber to slidably engage said shaft end.

BYRON C. RIBLET. ROYAL N. RIBLET.

Copies of this patent may bc obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

